Inverter for single phase pump control
October 2015
Electrical Power & Protection
Italtecnica’s Sirio 2.0 is a new electronic device for single phase electric pump control based on inverter technology. It is ideally suited for use with variable speed drives to provide constant pressure control. Sirio 2.0 controls the starting and stopping of the electric pump and modulates the motor rotations according to the water request from the system.
Sirio 2.0 provides an accurate pressure reading due to the modified pressure sensor amplification circuit, while its I/O expansion card allows connection to other devices. All functioning variables are indicated on the front panel. These include actual pressure frequency, incoming voltage, output current, internal temperature and IGBT temperature. The LV DC-DC converter features higher resistance to input voltage and fluctuations and lower EMI. Board-to-board connections are internally connected through ribbon flat cable instead of pin strips, increasing reliability as well as allowing for easier replacement during service. The user has a choice of automatic or manual functioning mode and voltage can be adjusted from the menu for operation in rural areas where power supply is not stabilised.
Sirio 2.0 automatically reduces power to the pump when the temperature increases to avoid over-temperature on the IGBT and DC bus capacitors and extend operational life. Constant pressure is assured due to regulation of the speed of the motor and energy is saved due to less pump absorption. The inverter allows a gradual pump start and stop, reducing hammering and avoiding a breakaway starting current.
Protection is provided against dry running in the event of water shortage on the suction. The device offers an automatic reset and efficient leakage monitoring to protect the pump in the event of repeated restarts. Maintenance is easy and access to the calibration menu is possible without removing the plastic enclosure. Operating on 230 V AC ±10% 50/60 Hz, the inverters have a maximum 8 bar pressure limit and are suitable for fluid temperatures up to 50°C.
For more information contact Carl Mulock, Raptech, +27 (0)11 693 5110, [email protected], www.raptech.co.za
Further reading:
Navigating solar energy adoption
Electrical Power & Protection
Although South Africa’s enhanced solar tax rebate has ended, solar and energy storage solutions remain accessible and achievable. By taking a proactive and strategic approach, businesses can successfully lower their operational costs, mitigate power outages, and secure long-term energy independence.
Read more...
As wind energy gains momentum, lack of grid infrastructure remains a bottleneck
Electrical Power & Protection
Interest in wind energy has gained significant momentum in South Africa, opening up new opportunities for investment. However, lack of grid infrastructure could prove to be a stumbling block in unlocking this potential.
Read more...
Portable appliance tester
Vepac Electronics
Electrical Power & Protection
The new appliance tester from Vepac is the ideal tool for testing the safety of electrical appliances in accordance with DGUV regulation 3 and BetrSichV. It enables the precise measurement of protective conductor or touch current using the equivalent leakage current method.
Read more...
Is sustainability enough any more?
Electrical Power & Protection
With the planet’s resources stretched to the brink and no signs of improvement, it is time we look beyond sustainability and explore regenerative thinking and design.
Read more...
A simple guide to understanding the importance of IP ratings
Electrical Power & Protection
When selecting electrical products for industrial, commercial or even domestic use, it is crucial to consider how well they can withstand environmental factors like dust and water. This is where ingress protection (IP) ratings come into play.
Read more...
A milestone in electrical safety
ABB South Africa
Electrical Power & Protection
Celebrating a milestone in electrical safety, ABB proudly marks the 100-year anniversary of its revolutionary Miniature Circuit Breaker.
Read more...
The power of water
Editor's Choice Electrical Power & Protection
The Alpenglow Hy4 is the world’s first water-based hydrogen combustion engine, offering a convincing alternative to traditional battery-electric vehicles and established hydrogen fuel cell designs.
Read more...
Optimising purification for green hydrogen production
Parker Hannifin - Sales Company South Africa
Editor's Choice Electrical Power & Protection
Parker Hannifin delivers advanced purification and thermal management components that enhance green hydrogen production.
Read more...
A new chapter in geothermal engineering
Editor's Choice Electrical Power & Protection
The town of Geretsried in southern Germany has become a focal point in the global shift toward renewable energy. While the world’s attention often turns to wind turbines and solar panels, a quieter but no less powerful force is at work deep beneath the surface, geothermal energy.
Read more...
Harnessing the ocean with wave energy
Editor's Choice Electrical Power & Protection
Wave energy is emerging as one of the most promising yet underutilised renewable sources. Tapping into the rhythmic, predictable power of ocean waves, this technology offers a clean, reliable alternative to fossil fuels and a valuable complement to wind and solar energy.
Read more...
printer friendly version